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Finding the Fourth Proportional to 267,636.95, 401,328.30 and 155,351.81

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Solution

The fourth proportional to 267,636.95, 401,328.30 and 155,351.81 is: 232,953.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,636.95 : 401,328.30 = 155,351.81 : x
  2. Step 2: Convert to fraction form
    267,636.95/401,328.30 = 155,351.81/x
  3. Step 3: Cross multiply
    267,636.95x = 401,328.30 × 155,351.81
  4. Step 4: Simplify right side
    267,636.95x = 62,347,077,809.22
  5. Step 5: Solve for x
    x = 62,347,077,809.22/267,636.95
  6. Step 6: Final answer
    x = 232,953.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.